alternative
blue
clean
cloudless
countryside
development
ecological
ecology
electric
electrical
electricity
energy
environmental
equipment
farm
field
fuel
generation
generator
grass
green
industry
innovation
innovative
landscape
meadow
mill
modern
natural
new
plant
power
prairie
production
propeller
renewable
resources
sky
spain
sustainability
sustainable
turbine
turbines
wind
wind turbine
windfarm
windfarms
windmill
windmills
windpower